Special Requirement

1 red top tube

Methodology

End point reaction

Special Instructions

Protect serum from light, using brown paper bag

Collection Days

Monday-Friday

Report Available

Daily

CPT Code

82250

Reference Range

0.2-1.2 mg/dl

Interfering Substance

Sodium azide,ascorbic acid and lipemia interferes with the testing. Interference from hemoglobin is a combi-nation of chemical and spectral interference. For elevated direct bilirubin values, hemoglobin interference will change from a positive to a negative bias.